Floyd Mayweather has confirmed his availability for the biggest hybrid fight of all time against Conor McGregor which holds August 26, in Las Vegas.

McGregor has been raring to go for weeks, it may well be that the hype will surpass the occasion but with his customary, control-freak timing, Mayweather has ensured another multi-million dollar extravaganza on that famous Strip.

Judging by all standards, this will be the biggest grossing event in the history of combat sports since Mayweather and Manny Pacquiao finally got it together to the tune of more than half a billion dollars between them.

Although this will be the notorious Irishman’s first orthodox boxing match and Mayweather will go into this cross between a fist fight and a circus spectacle, the Nevada State Athletic Commission have assured their Mr Money that all the relevant licenses and approvals will be forthcoming.

Not surprising that, since the casino drop from high rollers and sports punters will guarantee a bonanza for everyone. Mayweather is on a minimum certainty of $100million (£78m), plus the upside on high sales by Showtime, the major US cable network.

McGregor’s share of the bounty is thought to be in the region of $80m (£62m) but a percentage of that will go to the UFC, his paymasters in his customary field of action mixed martial arts.

UFC president Dana White told ESPN: “We’ve been in negotiations now for a while and to be honest the negotiation went smooth. We got the thing done, the impossible deal is now done.

White said the fight would be at 154lbs – light middleweight – and added: “It’ll be in a ring, it’s a boxing event. Conor McGregor is a guy who’s done a lot of good things over here for the sport and this company and he wanted this and the fans wanted it too.

“I talked to Conor McGregor this morning. He is absolutely 100 per cent positive that he wins this fight and I stopped doubting Conor McGregor a long time ago. Floyd Mayweather is 40 years old, he’s always had problems with southpaws. Conor McGregor is 27 and he is a southpaw. Whenever Conor hits people, they fall.

“I’m not saying Conor McGregor’s going to win. I’m not saying Floyd Mayweather’s going to win. But the reason Conor McGregor’s as big as he is is he’ll fight anybody, anywhere, anytime. He will go after Floyd Mayweather and he will try to knock him out.”